Starting to work on many-to-one support
Merge branch 'master' into many-to-one
First few tests, already failing
Iterable -> List, stronger contract for library users
Many-to-one implemented, all tests passing on H2
Correct toString() label
Custom SqlGenerator was overwritten by default bean
All many-to-one tests pass on Derby, some dirty hacks to produce syntactically correct SQL
Less mapping code in Derby
All many-to-one tests pass on HSQLDB
All many-to-one tests pass on MySQL
All many-to-one tests pass on PostgreSQL + extracting port constant
Extracting MySQL port constant
Configurable passwords for MySQL and PostgreSQL, useful for developer environment
Merge branch 'master' into many-to-one
Giving up on foreign key on comments table, MySQL on Travis doesn't like it for some reason